Question 1

What is 1,240 ppm in PSU?

Accepted Answer

1,240 ppm = 1.246 PSU. Use the converter on this page to convert to other salinity / tds units instantly.

Question 2

How do you convert ppm to PSU?

Accepted Answer

Formula: 1 g/kg ≈ 1.0049 PSU · 1 mg/L ≈ 0.001 PSU · 1 ppm ≈ 0.001 PSU (dilute aqueous approximation). Multiply your ppm value by the appropriate factor to get PSU, or use the interactive converter above.

Question 3

What is 1.246 PSU in ppm?

Accepted Answer

1.246 PSU = 1,239.9 ppm.

ppm	PSU
1,225 ppm	1.231
1,230 ppm	1.236
1,235 ppm	1.241
1,240	1.246
1,245 ppm	1.251
1,250 ppm	1.256
1,255 ppm	1.261

1,240 ppm to PSU

Formula